Highly sensitive infrared detector based on a two-dimensional heterojunction

Two-dimensional (2D) materials have got extensive attention for multifunctional device applications in advanced nanoelectronics and optoelectronics, such as field-effect transistors, photodiodes, and solar cells. In our work, we fabricated MoTe 2 –MoS 2 van der Waals heterostructure photodetectors with great performance using the mechanical exfoliation method and restack technique. It is demonstrated that our MoTe 2 –MoS 2 heterostructure photodetector device can operate without bias voltage, possessing a low dark current (10 pA) and high photocurrent on/off ratio (>10 4 ). Importantly, the room temperature photoresponsivity of the MoTe 2 –MoS 2 photodetector can reach 110.6 and 9.2 mA W –1 under λ = 532 and 1064 nm incident laser powers, respectively. Our results indicate that the van der Waals heterostructure based on 2D semiconducting materials is expected to play an important role in nanoscale optoelectronic applications.

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High-Performance Photodetectors Based on MoTe₂–MoS₂ van der Waals Heterostructures

Xuan

Bai

Luo

et al. 2022

ACS Omega

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星载遥感短波红外高速高光谱成像仪坏像元识别

Yongzheng¹,

Jian²,

Qinyuning³

et al. 2023

红外与激光工程

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Progress on self-powered photodetectors based on low-dimensional materials

Zhang,

Zhao,

Liu

et al. 2025

Acta Physico-Chimica Sinica

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Highly sensitive infrared detector based on a two-dimensional heterojunction

Cited by 3 publications

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High-Performance Photodetectors Based on MoTe₂–MoS₂ van der Waals Heterostructures

High-Performance Photodetectors Based on MoTe₂–MoS₂ van der Waals Heterostructures

星载遥感短波红外高速高光谱成像仪坏像元识别

Progress on self-powered photodetectors based on low-dimensional materials

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Highly sensitive infrared detector based on a two-dimensional heterojunction

Cited by 3 publications

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High-Performance Photodetectors Based on MoTe2–MoS2 van der Waals Heterostructures

High-Performance Photodetectors Based on MoTe2–MoS2 van der Waals Heterostructures

星载遥感短波红外高速高光谱成像仪坏像元识别

Progress on self-powered photodetectors based on low-dimensional materials

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Product

Resources

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High-Performance Photodetectors Based on MoTe₂–MoS₂ van der Waals Heterostructures

High-Performance Photodetectors Based on MoTe₂–MoS₂ van der Waals Heterostructures